SYSTEMS AND METHODS FOR CONTROLLING COMMON MODE VOLTAGE OF MULTI-MODE POWER CONVERTER
1 Assignment
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Accused Products
Abstract
A switching power stage for producing an output voltage to a load may include a power converter and a controller. The power converter may include a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations. The controller may be configured to, based on a measured parameter associated with the switching power stage, select a selected operational mode of the power converter from a plurality of operational modes, and sequentially apply switch configurations from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to transfer electrical energy from an input source of the power converter to the load in accordance with the selected operational mode.
A switching power stage for producing an output voltage to a load may include a power converter and a controller. The power converter may include a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations. The controller may be configured to, based at least on an input signal to the switching power stage, determine the differential output voltage to be driven at the load, and based on the differential output voltage to be driven at the load, apply a switch configuration from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to generate the differential output voltage.
A method may include sequentially applying a plurality of switch configurations in a power converter to selectively activate or deactivate each of the plurality of switches in order operate the power converter as a differential output buck converter, such that: during a charging phase of the power converter, the power inductor is coupled between (i) one of a first terminal of a power source and a second terminal of the power source and (ii) one of a first terminal of the output load and a second terminal of the output load; during a transfer phase of the power converter, at least one of the plurality of switches is activated in order to couple the power inductor between the first terminal of the output load and a second terminal of the output load; and the output voltage comprises a differential voltage between the first and second terminal of the output load.
16 Citations
73 Claims
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1-34. -34. (canceled)
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35. A switching power stage for producing an output voltage to a load, comprising:
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a power converter comprising a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations; and a controller configured to; select a selected operational mode of the power converter from a plurality of operational modes, the plurality of operational modes comprising at least; a first operational mode in which a first terminal of the load is at a voltage potential lower than that of a first terminal of a power source to the power converter and a second terminal of the load is at a voltage potential higher than that of a second terminal of the power source; and a second operational mode in which one of the first terminal of the load and the second terminal of the load is coupled with a switch of the plurality of switches to one of the first terminal of the power source and the second terminal of the power source; and sequentially apply switch configurations from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to transfer electrical energy from an input source of the power converter to the load in accordance with the selected operational mode. - View Dependent Claims (36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47, 48)
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49. A switching power stage for producing a differential output voltage to a load, comprising:
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a power converter comprising a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations; and a controller configured to; based at least on an input signal to the switching power stage, determine the differential output voltage to be driven at the load; and based on the differential output voltage to be driven at the load, apply a switch configuration from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to generate the differential output voltage. - View Dependent Claims (50, 51, 52, 53)
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54. A method for producing an output voltage to a load, comprising:
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selecting a selected operational mode for a power converter comprising a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations, the plurality of operational modes comprising at least; a first operational mode in which a first terminal of the load is at a voltage potential lower than that of a first terminal of a power source to the power converter and a second terminal of the load is at a voltage potential higher than that of a second terminal of the power source; and a second operational mode in which one of the first terminal of the load and the second terminal of the load is coupled with a switch of the plurality of switches to one of the first terminal of the power source and the second terminal of the power source; and sequentially applying switch configurations from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to transfer electrical energy from an input source of the power converter to the load in accordance with the selected operational mode. - View Dependent Claims (55, 56, 57, 58, 59, 60, 61, 62, 63, 64, 65, 66, 67)
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68. A method for producing an output voltage to a load, comprising:
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based at least on an input signal to a switching power stage for producing a differential output voltage to a load, wherein the switching power stage comprises a power inductor and plurality of switches arranged to sequentially operate in a plurality of switch configurations, determining the differential output voltage to be driven at the load; and based on the differential output voltage to be driven at the load, applying a switch configuration from the plurality of switch configurations to selectively activate or deactivate each of the plurality of switches in order to generate the differential output voltage. - View Dependent Claims (69, 70, 71, 72)
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73-86. -86. (canceled)
Specification